This is a forbidden world where lifespan is currency and contracts are made with the abyss.
To save a loved one, terminally ill teenager Xuan Li is forced to become a lifelong contractee of the Abyss Library, gaining the right to trade lifespan for supernatural abilities. But every ancient book he unlocks speeds up his death countdown by ten years. The more forbidden knowledge he borrows, the more he discovers that this life-devouring library holds the ultimate secrets to reversing life and death and controlling time and space...
